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REDARC DC/DC Dual Input In-Vehicle Battery Charger - 12V 25A

BCDC1225D In-vehicle Dual Battery Charger. It's a 12 volt, 25A in-vehicle DC-DC battery charger designed to charge your secondary battery banks to 100% state of charge while on the move. Additional features within this Solar Ready charger, such as a Maximum Power Point Tracking (MPPT) solar regulator and built-in Green Power Priority (primary solar selection), means you can charge your batteries using solar panels when driving or portable panels when stationary. With simultaneous DC and Solar inputs, this makes it the most advanced dual battery charger on the market today. Have the reassurance and confidence that your batteries will be charged to their optimal levels, thanks to a unique multi-stage charging algorithm that provides specific charging profiles tailored to all common battery types. The SEMA Global Media Awarding winning BCDC1225D is perfect for charging AGM, Gel, Standard Lead Acid, Calcium, and LiFePO4 batteries. The unit works with 12- or 24-volt vehicle systems and with either standard or variable/smart alternators. This DC-DC battery charger with solar input has been proven to work in all types of terrains, including deep water crossings, and stands up against extreme heat (up to 176 deg F). It's fully sealed against the risk of infiltration from water and dust and will hold up to the adventure at hand. It's designed to maximize the performance and life of your auxiliary battery and is suited for battery bank sizes of 75-200AH in most applications. Made in Australia by REDARC this amazing range has undergone years of testing in some of the harshest conditions on the planet. REDARC has been in business for nearly 40 years and all of our products are made tough enough to take anything nature can throw at them. This DC-DC battery charger with solar input has been proven to work in all types of terrains, including deep water crossings, and stands up against extreme heat (up to 176 deg F)
  • 12 volt, 25A in-vehicle DC-DC battery charger designed to charge the secondary battery banks to 100% state of charge while on the move.
  • Charges AGM, Gel, Standard Lead Acid, Calcium, and LiFePO4 batteries.
  • Compact and fully sealed to block out water, dust, and vibration

The REDARC BCDC1225D is a 12-volt, 25-amp in-vehicle DC-DC battery charger designed to charge auxiliary battery banks to a full state of charge while driving. Its dual-input design accepts power from the vehicle electrical system and compatible solar panels, allowing the charger to replenish batteries while traveling or when parked. Built-in Maximum Power Point Tracking (MPPT) solar regulation and Green Power Priority help maximize available solar energy and prioritize solar charging when conditions permit.
The BCDC1225D uses a multi-stage charging algorithm with tailored profiles for common battery chemistries, including AGM, gel, standard lead-acid, calcium, and LiFePO4 batteries. It is compatible with 12-volt and 24-volt vehicle systems and supports both conventional and variable-output smart alternators. This makes the REDARC BCDC1225D a versatile charging solution for auxiliary battery systems used in off-road vehicles, campers, work vehicles, and powersports applications. It is generally suited for auxiliary battery banks from 75 to 200 amp-hours, depending on the installation and application.
Built for demanding environments, this REDARC charger is fully sealed to help protect against water, dust, vibration, and harsh operating conditions. It has been tested for challenging terrain, including deep-water crossings, and is designed to withstand ambient temperatures up to 176 degrees Fahrenheit. The rugged construction helps support dependable operation while protecting auxiliary battery performance and service life. Made in Australia, the REDARC BCDC1225D reflects decades of experience developing charging equipment for demanding automotive and recreational applications.


  • 12-volt, 25-amp in-vehicle DC-DC charger for maintaining auxiliary battery banks while driving

  • Dual-input charging from vehicle power and solar panels

  • Built-in MPPT solar regulator and Green Power Priority for efficient solar charging

  • Supports AGM, gel, standard lead-acid, calcium, and LiFePO4 batteries

  • Compatible with 12-volt or 24-volt vehicles and standard or smart alternators

  • Fully sealed housing helps resist water, dust, vibration, and extreme heat

Features:

  • Voltage: Compatible with 12-volt and 24-volt vehicle systems
  • Charging Output: 25-amp DC-DC charging for auxiliary battery banks
  • Dual Input: Accepts vehicle electrical power and solar energy
  • Solar Regulation: Integrated MPPT solar regulator improves solar charging efficiency
  • Power Priority: Green Power Priority favors solar input when available
  • Battery Compatibility: Supports AGM, gel, standard lead-acid, calcium, and LiFePO4 batteries
  • Alternator Compatibility: Works with conventional and variable-output smart alternators
  • Protection: Fully sealed against water, dust, and vibration
  • Operating Environment: Designed for demanding terrain and temperatures up to 176 degrees Fahrenheit
  • Application: Generally suited for auxiliary battery banks from 75 to 200 amp-hours